A ratio to approximate the proximodistal extent of the flexor retinaculum in relation to the hand length

Purpose: Supraretinacular endoscopic carpal tunnel release (SRECTR) is a technique in which an endoscope is inserted superficial to the flexor retinaculum through a subcutaneous tunnel. The benefits of this method include a clear view for the surgeon and absence of median nerve compression. Surgeons can operate with a familiar view of the flexor retinaculum and median nerve downward, similar to open surgery. This study aimed to investigate the learning curve for SRECTR, an alternate method for carpal tunnel release, and evaluate its complications and the functional outcomes using a disposable commercial kit. Methods: We examined the open conversion rates and complications associated with SRECTR in 200 consecutive patients performed by two surgeons. We compared the operative time operated by a single surgeon. We evaluated outcomes in 191 patients according to Kelly’s grading system. Patients’ mean follow-up period was 12.7 months. Results: Nine patients required conversion to open surgery. There were no injuries to the nerves and tendons and no hematoma or incomplete dissection of the flexor retinaculum. The operative times varied between 11 and 34 minutes. We obtained the following results based on Kelly’s grading of outcomes: excellent in 116, good in 59, fair in 13, and poor in 3 patients. Conclusions: We found no patients with neurapraxia, major nerve injury, flexor tendon injury, superficial palmar arch injury, and hematoma. Although there was a learning curve associated with SRECTR, we performed 200 consecutive cases without neurovascular complications. This method may be a safe alternative to minimally invasive carpal tunnel surgery.

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Assessment of Stature from Hand Span - A Cross Sectional Descriptive Investigation among Undergraduate Medical Students

Journal of Evolution of Medical and Dental Sciences ◽

10.14260/jemds/2021/125 ◽

2021 ◽

Vol 10 (9) ◽

pp. 577-582

Author(s):

Mani Kathapillai

Keyword(s):

Urban Areas ◽

Tamil Nadu ◽

Male Students ◽

Span Length ◽

Undergraduate Medical Students ◽

Cross Sectional ◽

Medical College ◽

Hand Size ◽

Males And Females ◽

Hand Length

BACKGROUND Hand size measurements are commonly used references when instruments are not available and still practiced in rural and even in urban areas of Tamil Nadu. Ancient literature evidences have adequate support for their usage. We wanted to correlate hand span length, hand breadth, and hand length with the stature of an individual. We also wanted to compare the level of correlation of hand span length between males and females. METHODS 214 students were recruited for this study as a convenient sample size. Male students were 122, females were 92. They were aged between 18 - 23 years of Shri Sathya Sai Medical College and Research Institute. Hand span is the distance between tips of the casually extended pollex and minimus. RESULTS The results of Pearson’s correlations were moderately significant between height and the hand breadth (0.315), between height and weight (0.340), and between height and hand length (0.387). The extent of correlation was significant between height and the hand span (0.954) in case of males. In case of females, value of the correlation was also moderately significant between height and the hand breadth (0.619), between height and weight (0.392), between height and hand length (0.515) and between height and the hand span (0.973). CONCLUSIONS The stature was reliably estimated from the hand span length, and the same could be applied for the medicolegal, and forensic purposes. KEY WORDS Hand Span, Stature, Medico Legal, Anthropometry

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The Most Important Risk Factors for Carpal Tunnel Syndrome

Journal of Zabol Medical School ◽

10.18502/jzms.v4i3.7821 ◽

2021 ◽

Author(s):

Ali Asghar Sharifi

Keyword(s):

Risk Factors ◽

Carpal Tunnel Syndrome ◽

Carpal Tunnel ◽

Clinical Symptoms ◽

Normal Subjects ◽

Shape Index ◽

Mean Values ◽

Tunnel Syndrome ◽

Independent Risk Factors ◽

Hand Length

Background: The aim of this study was to determine the risk factors for carpal tunnel syndrome and its relationship with the severity of the disease. Methods: A total of 131 patients with clinical symptoms of CTS and 131 normal subjects were enrolled, of whom 121 were female both in the CTS cases and the controls. All cases were electro diagnostically confirmed and assigned to three severity groups. BMI, wrist ratio, shape index, digit index and hand length/height ratio were measured in all participants. Mean values for each item were compared between cases and controls and severity subgroups. A logistic regression analysis was performed to determine independent CTS risk factors. Results: The mean values of BMI, wrist ratio and shape index were significantly higher in all CTS patients and females compared to controls, whereas in males only BMI and wrist ratio were higher. The patients in the mild severity subgroup had a significantly lower age and wrist ratio. BMI, wrist ratio and shape index were found to be independent risk factors of CTS development in all patients and females. Conclusion: Our study showed BMI, wrist ratio and shape index as independent risk factors for CTS. These findings are important anatomically and clinically and these are the risk factors of anatomical malfunction of the wrist in CTS.

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Relationship between anthropometrics and handgrip strength among Nigerian school children

Biomedical Human Kinetics ◽

10.1515/bhk-2017-0008 ◽

2017 ◽

Vol 9 (1) ◽

pp. 51-56 ◽

Cited By ~ 1

Author(s):

Adebisi I. Hammed ◽

Elvis I. Agbonlahor

Keyword(s):

School Children ◽

Handgrip Strength ◽

Body Height ◽

Middle Finger ◽

Anthropometric Parameters ◽

Moment Coefficient ◽

Hand Length ◽

Relationship Of ◽

The Relationship ◽

Nigerian School

Summary Study aim: Was to investigate the relationship of anthropometrics with handgrip strength (HGS) among Nigerian school children.Material and methods: A total of 200 school children participated in this study. An electronic handgrip dynamometer was used to measure handgrip strength (HGS) in kg. Body height and body weight were measured with a wall-mounted stadiometer in meters and a bathroom weighing scale in kg, respectively. Body mass index (BMI) was then calculated using the formula weight (kg)/height (m2). Also, hand span of both hands was measured from the tip of the thumb to the tip of the small finger with the hand opened as wide as possible. The distance from the distal wrist crease up to the base of the middle finger was taken for palm length and the distal wrist crease to the tip of the middle finger was considered for the measurement of hand length. However, the relationship between HGS and anthropometric parameters was analyzed using Pearson’s product moment coefficient of correlation.Results: The outcome of this study showed that hand and palm length correlated disproportionately and insignificantly (p > 0.05) with both dominant and non-dominant HGS. Also, hand span was found to be a disproportionate correlate of HGS, though such a correlation was only significant (p < 0.05) with dominant HGS. However, BMI and handedness were observed to associate proportionately and significantly (p < 0.05) with HGS.Conclusion: This study therefore concluded that the most important determinants of HGS among Nigerian school children are BMI, handedness and hand span, and thus could be considered as markers of nutritional and health status, as well as physical fitness of these individuals.

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Macrophages primed by overnight culture demonstrate a marked stimulation of surfactant protein A degradation

AJP Lung Cellular and Molecular Physiology ◽

10.1152/ajplung.1997.273.4.l831 ◽

1997 ◽

Vol 273 (4) ◽

pp. L831-L839 ◽

Cited By ~ 9

Author(s):

Sandra R. Bates ◽

Jin Xu ◽

Chandra Dodia ◽

Aron B. Fisher

Keyword(s):

Protein A ◽

Surfactant Protein ◽

Surfactant Protein A ◽

Prolonged Culture ◽

Primed State ◽

Elevated Rate ◽

Hand Length ◽

Macrophage Uptake ◽

Overnight Culture

The current study examined whether long-term culture of macrophages affects their metabolism of surfactant components. Compared with freshly isolated resting macrophages in culture for 1 h, macrophages attached to plastic dishes for 24 h showed evidence of conversion to a “primed” state with 1) an altered morphology characterized by a larger size, ruffled membranes, lamellipodia, and a “foamy” appearance after attachment to glass and 2) a fivefold greater respiratory burst in response to phorbol 12-myristate 13-acetate stimulation. On incubation with iodinated surfactant protein A (SP-A), the 24-h alveolar or tissue macrophages showed a 5- or a 23-fold greater increase in SP-A degradation, respectively, than macrophages cultured for 1 h. Conditioned media experiments demonstrated that the elevated rate of SP-A degradation after prolonged culture was not a result of proteases secreted by the macrophages. Incubation of cells with NH4Cl reduced the degradation of SP-A to a similar extent (to 33% of control values) in resting and primed tissue macrophages. On the other hand, length of time of cell culture did not affect macrophage uptake and degradation of [3H]dipalmitoylphosphatidylcholine in mixed unilamellar liposomes. Thus freshly isolated resting tissue and alveolar macrophages can be primed to specifically increase their rate of SP-A degradation. Activation of macrophages associated with lung disease may be important for SP-A metabolism and surfactant function.

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